The area of a circle can be calculated using the formula:
Area = πr²
where r is the radius of the circle. Given that the diameter is 12 inches, the radius is half of the diameter, which is 6 inches.
Now, plug the radius into the formula:
Area = π(6)²
Area = π(36)
Area ≈ 113.10 square inches
So, the area of a circle with a diameter of 12 inches is approximately 113.10 square inches.